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@@ -17,6 +17,68 @@ export type {
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CodeRunResult,
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} from './types.ts'
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+/**
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+ * Binding globals EVERY backend refuses because SOME backend owns the slot in
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+ * the program's namespace: `console` (the worker's log capture), and
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+ * `__dsh_main__`/`__builtins__`/`__name__` (the Python bootstrap's wrapper
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+ * and seeded module globals), and `__debug__`. One shared set — rather than each backend
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+ * refusing only its own slots — keeps the portability promise real: a
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+ * namespace list valid on one backend is valid on all, so a caller cannot
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+ * pick a name that works on the worker and collides on Python (or vice
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+ * versa). Dunder-form names are additionally covered by the identifier rule
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+ * on `CodeBindingNamespace.global` only when they fail it; `__name__` et al.
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+ * ARE valid identifiers, hence this explicit set. `__debug__` is listed for a
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+ * different reason than a collision: CPython compiles a bare `__debug__`
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+ * reference to the constant `True` and rejects any assignment to the name at
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+ * COMPILE time, so an injected global under that name is unreachable from the
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+ * program — accepted by validation, unusable on the Python backend, which is
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+ * exactly the split the shared set exists to prevent.
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+ */
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+export const RESERVED_BINDING_GLOBALS: ReadonlySet<string> = new Set([
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+ 'console',
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+ '__dsh_main__', '__builtins__', '__name__', '__debug__',
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+])
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+
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+/**
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+ * `CodeBindingErrorClass.memberNameProperty` names EVERY backend refuses, as
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+ * one shared contract so a request valid on one backend is valid on all. The
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+ * JS `Error` exclusions (`name`, `message`, `stack`) and Python's
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+ * exception-protocol members (`args`, `with_traceback`, `add_note`) are
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+ * listed by name; dunder-form names (`__*__`) are refused wholesale — several
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+ * are constrained CPython descriptors whose `setattr` raises while
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+ * constructing the rejection, and the exact set is an interpreter version
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+ * detail. Any other non-empty own property name is accepted everywhere.
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+ */
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+export const RESERVED_ERROR_MEMBERS: ReadonlySet<string> = new Set([
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+ 'name', 'message', 'stack',
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+ 'args', 'with_traceback', 'add_note',
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+])
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+
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+/** Dunder form (`__*__`): object-protocol slots in Python, refused as {@link RESERVED_ERROR_MEMBERS | error members} on every backend. */
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+export const DUNDER_MEMBER = /^__.*__$/
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+
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+/**
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+ * Reserved words of EVERY shipped backend language (ECMAScript ∪ Python),
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+ * refused as {@link CodeBindingNamespace.global} / error-class names by all
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+ * backends. The portable-identifier contract promises a namespace list valid
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+ * on one backend is valid on every backend; a per-language check would let
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+ * `lambda` pass the TypeScript backend and fail the Python one. Extending the
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+ * seam with a new language means widening this union (a breaking review of
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+ * existing binding names, by design).
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+ */
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+export const PORTABLE_RESERVED_WORDS: ReadonlySet<string> = new Set([
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+ // ECMAScript reserved words and reserved-in-strict-mode names.
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+ 'await', 'break', 'case', 'catch', 'class', 'const', 'continue', 'debugger', 'default', 'delete', 'do',
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+ 'else', 'enum', 'export', 'extends', 'false', 'finally', 'for', 'function', 'if', 'import', 'in',
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+ 'instanceof', 'new', 'null', 'return', 'super', 'switch', 'this', 'throw', 'true', 'try', 'typeof',
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+ 'var', 'void', 'while', 'with', 'yield', 'let', 'static', 'implements', 'interface', 'package',
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+ 'private', 'protected', 'public', 'arguments', 'eval',
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+ // Python 3.x keywords and soft keywords not already above ('type' and '_'
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+ // are soft keywords: legal names in practice, reserved here for safety).
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+ 'False', 'None', 'True', 'and', 'as', 'assert', 'async', 'def', 'del', 'elif', 'except', 'from',
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+ 'global', 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 'match', 'type', '_',
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+])
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+
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declare module 'cordis' {
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interface Context {
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codeRuntime: CodeRuntime
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